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Capital Gains Tax calculator

Work out Capital Gains Tax on a disposal of shares or residential property. Applies the annual exempt amount, splits gains across basic and higher rate bands, and shows the calculation with GOV.UK sources cited.

Disposal details

Estimate Capital Gains Tax on a disposal in England, Wales, or Northern Ireland. Main-home relief, spouse transfers, and specialist regimes are not modelled.

Legal fees, improvement costs, and other allowable deductions (not including your annual exempt amount).

Your tax position

CGT rates depend on your Income Tax band. Enter taxable income (after Personal Allowance) or indicate you are already a higher-rate taxpayer.

Income after Personal Allowance and other Income Tax reliefs — used to work out how much of your gain falls in the basic-rate band (£37,700 width for 2025/26).

Rates and sources

ItemSourceVerified
GOV.UK — Capital Gains Tax rates and allowancesGOV.UK2025-06-01
Annual exempt amount£3,000.00
Rate periodFull tax year

Capital Gains Tax due

£1,260.00

Gain on this disposal
£10,000.00
Total gains (after losses)
£10,000.00
Annual exempt amount used
£3,000.00
Taxable gain
£7,000.00
Effective rate on this disposal
12.60%

Rate breakdown

Tax on the taxable gain after the annual exempt amount.

BandRateTaxableCGT
Basic rate band18.0%£7,000.00£1,260.00
Total£1,260.00

Buying property? See our Stamp Duty calculator. Salary and take-home estimates are in the salary calculator.